Wi-Fi bug found in Apple iOS
BleepingComputer cited reverse engineer Carl Schou’s discovery that iOS devices are connecting to a Wi-Fi hotspot with an SSID of “%p%s%s%s%s%n”, and the iPhone’s Wi-Fi function will be forcibly stopped and cannot be used. The user needs to reset the network settings to reactivate the Wi-Fi function.
This vulnerability also exists in the iOS 14.6 test version, but this bug has not been found to have any security issues, and the cause of this flaw has not yet been clarified. BleepingComputer guessed that there was a problem with iOS processing the string, and input it as a variable.
Although there are no particularly significant security issues, Apple has caused a lot of problems due to string processing in recent years, including 2018 Indian characters that crashed the communication applications of iOS and macOS systems and the specific Emoji that occurred in the same year that caused the system to crash. In addition, there is the problem of system crash caused by specific Unicode strings last year. At the beginning of this year, there was another iCloud user named Rachel True who reports that an iCloud user locked out for six months over a coding bug related to her last name.